No known copyright for Curt Teich postcards printed before 1964, with the following exception: if the Teich postcard has a photographer's copyright on it, or depicts a trademarked image, the user must seek permission from any holders of rights. For Teich postcards printed after 1964 or postcards printed by other companies, contact the Digital Initiatives and Services, Newberry Library, 60 W. Walton St., Chicago, IL 60610. Phone: 312-255-3566. E-mail: rightsandrepro@newberry.org. For ease in dating Curt Teich postcards there is a dating guide available: ( https://www.newberry.org/sites/default/files/researchguide-attachments/Teich_Postcard_Dating_Guide_2016.pdf )